Paper box



No. 622,274 Patented Apr. 4, I899. T. F. W. SCHMIDT.

PAPER BOX.

(Application filed June 4, 1898.)

3 Shoets$haet 2.

(No Model.)

(No Modal.)

T. F. W. SCHMIDT.

PAPER BOX,

(Application filed June 4 1898;

Patented Apr. 4, I899.

3 Sheets-Sheet 3.

NI ATES PATENT OFFICE.

THEODORE F. WV. SCHMIDT, OF ANDERSON, INDIANA, ASSIGNOR OF ONE-HALF TOTHE J. W. SEFTON MANUFACTURING COMPANY, OF SAME PLACE AND.

CHICAGO, ILLINOIS.

PAPER ox.

SPECIFICATION forming part of Letters Patent No. 622,274, dated April 4,1899.

Application filed June 4, 1898. Serial No. 682,594. (No model.)

To aZZ whom it may concern.-

Be it known that I, THEODORE F. W. SCHMIDT, a citizen of the UnitedStates, residing at Anderson, in the county of Madison, in the State ofIndiana, have invented a certain new and useful Improvement in PaperBoxes, of which the following is a description, reference being had tothe accompanying drawings, forming part of this to specification.

My invention relates particularly to the lids of paper boxes, althoughapplicable to the bodies of comparatively shallow boxes.

It has for its object, primarily, the produc- I 5 tion of a box-lidwhich can be folded into shape from a single blank in such a way thatits folded flaps serve to maintain it in proper form without thenecessity for any pasting or the employment of any other fasteningdevices, and, secondarily, the making of such box-lid collapsible, sothat it may be pressed into fiat condition for the purpose of storage orshipment in compact form.

The novelty of my invention consists in the form of the blank from whichthe box or lid is folded and in the manner of folding it into andsecuring it in form.

In the accompanying drawings, Figure 1 is a plan view of. the blank fromwhich the lid 0 is folded in flat condition; Fig. 2, a perspective viewof the blank partly folded into lid form; Fig. 3., a view correspondingto Fig. 2, with the parts as they appear at a further stage of thefolding operation; Fig. 4, a per- 3 5 spective View of thecompletely-folded lid in condition for use, and Fig. 5 a plan view ofthe lid shown in Fig. 4 collapsed or pressed into flat condition forstorage or shipment.

The same letters of reference are used to indicate corresponding partsin the several views.

The blank is out to the form indicated by the solid lines in Fig. 1 andcreased, as indicated by the dotted lines in said figure, forming arectangular central portion A, which constitutes the top of the lid (orbottom of the box) when the blank is folded into-lid or box form, andtwo main side flaps B B and two end flaps C G, forming, respectively,the

sides and ends of the completed lid or box B. The side flaps B B hingeupon the part A along the creased lines a a, and each is provided withtwo longitudinal creases b c, the edge portions of the flaps beyond thecreases c c forming narrow longitudinal flaps a: as, hereinafter moreparticularly referred to. The end flaps O O hinge upon the part A alongthe creased lines (1 d, and each is provided with two longitudinalcreases e f, the edge portions of these flaps O 0, beyond the creases ff, forming narrow longitudinal flaps y y, hereinafter more particularlyreferred to. Each of the end flaps is also provided at its opposite endswith diagonal creases g g, these, however, being provided for thepurpose of enabling the completed lid to be collapsed or pressed intoflat form, as hereinafter explained, and not being essential to the folding of the blank into lid form.

Each of the end flaps O O is provided at each of its ends with twolongitudinal extensions D E, separated from each other by a slit or openspace h. These slits or open spaces h communicate by slits i, cut in thebodies of the end flaps O O, with the points of junction of the diagonalcreases g g, the function of which slits i i is to facilitate thecollapsing of the completed lid along the creases g g.

The blank above described is folded into lid or box form in thefollowing manner, having reference, for simplicity of description, to asingle end and side of the box at one time: The end flap O is firstfolded over upon the creased line e and pressed down fiat upon theblank, as shown at the lower end of the view in Fig. 2. Then it is bentto vertical position along the creasedlines d f and the end flaps orextensions D E bent inward to position along the creased lines a a, asshown at the upper end of the View in Fig. 2. The side flap B is nextbent up to vertical position along the creased line a, as shown at theright-hand side of the view in Fig. 3. Then pressed fiat against thepart Aand atits 0pposite ends overlapping and resting upon the inneredge flap y of the end flap C, as shown at the upper left-hand corner ofthe view in Fig. 3. Then the parts have been brought to this position atall four corners of the lid, the edge flaps y y of the end flaps O Cwill be bent upward and their extremities withdrawn from beneath theedge flaps 0e 00 of the sides B B, the ends of said side flaps 0cm beingbent upward or yielding sufficiently to permit the withdrawal of theends of the end flaps y y from beneath them, and then the end flaps y 'ywill be pressed down flat again upon the part A and their opposite endsbe made to overlap and rest upon the ends of the side flaps a: w, asclearly shown in Fig. 4:.

lVhen the blank is folded into lid or box form in the manner abovedescribed, it will be seen that the extensions D E of the ends of thebox are inelosed between the folded sides of the box and serve tosupport the latter in vertical position relative to the part A, whilethe edge flaps y y of the ends 0 C, overlapping at their opposite endsthe ends of the side flaps m w, serve to hold the side flaps B B infolded condition, with the extensions D E confined in them. The sides BB thus serve to hold the ends 0 O in position by confining theextensions D E of the ends, while the ends O C serve to hold the sides BB in position by the engagement of their flaps y y with the side flaps00 0c.

The completed lid or box shown in Fig. 4= may be collapsed and pressedout fiat by pressing its ends 0 O outward and downward and its sides B Binward and downward, as shown in Fig. 4, the ends C O folding uponthemselves along the diagonal creases g, and the slits t in the ends 0 Cpermitting sufficient freedom of movement to facilitate such folding ofthe ends upon themselves.

The purpose of the extensions D E of the end flaps C C being to connectthe ends with the sides and support the latter, it will be understoodthat this function might be performed to a certain extent by a singleextension D upon each end of each flap C and the extensions E beomitted; but the employment of both extensions D E gives additionalstrength and support to the folded lid or box and is desirable.

Having thus fully described my invention, I claim-- 1. Theherein-described box-blank, composed of the rectangular central portionA, sides B B and ends 0 O, the sides B B being provided with thelongitudinal creases b c, and the ends 0 0 being provided with thelongitudinal creases e f and the diagonal creases g, and extensions D,as and for the purpose described.

2. The herein-described box-blank, composed of the rectangular centralportion A, sides B B and ends C O, the sides B B being provided withlongitudinal creases b c, and the ends 0 G being provided with thelongitudinal creases e f and diagonal creases g, and end extensions D Eseparated by the slits or open spaces 72. communicating by the slits t'with the points of junction of the creases g g, as and for the purposedescribed.

The herein-described box-lid, composed of the top A, sides B B, and ends0 G, folded in the manner described from a singe blank, the sides B Bconfining in their folds extensions D of the ends 0 O and being providedwith edge flaps 0c 00 resting against the top A and overlapped andconfined at their opposite ends by the edge flaps y 3 of the ends 0 0,whereby the sides B B serve to hold the ends 0 C in position byconfining theirextensions D, while the ends 0 O serve to hold the sides13 B in position by the engagement of their flaps 1 y with the flaps a;a: of the sides B B, substantially as described.

L The herein-described collapsible box-lid, composed of the top A,-sides B B and ends 0 O, the latter provided with the diagonal creases gand slits 2', the sides B B confining in their folds extensions D E ofthe ends C O, and being provided with edge flaps ma: resting against thetop A and overlapped and confined at their opposite ends by edge flaps yy of the ends 0 C, substantially as described.

THEODORE F. V. SCHMIDT.

\Vitnesses:

FRANCIS A. WALKER, FRANK P. FOSTER.

